def trace(level, message, nesting_level = 0)
if @@log_level >= level
if @@log_filename
if !@@log_device || @@log_device.closed?
@@log_device = File.open(@@log_filename, "a")
end
output = @@log_device
else
output = @@stderr_evaluator.call
end
location = caller[nesting_level].sub(/.*phusion_passenger\//, '')
location.sub!(/(.*):.*/, '\1')
now = Time.now
time_str = now.strftime("%Y-%m-%d %H:%M:%S.")
time_str << sprintf("%03d", now.usec / 1000)
output.write("[ pid=#{$$} thr=#{Thread.current.object_id} file=#{location} time=#{time_str} ]: #{message}\n")
output.flush
end
end